Analysis.jrag 5.8 KB
Newer Older
Niklas Fors's avatar
Niklas Fors committed
1
2
3
import java.util.*;


Niklas Fors's avatar
Niklas Fors committed
4
aspect TypeAnalysis {
Johannes Mey's avatar
Johannes Mey committed
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
  public abstract TypeUse Component.getTypeUse();

  syn TypeDecl TypeUse.decl() = lookupType(getID());
  inh TypeDecl TypeUse.lookupType(String name);
  eq Program.getChild().lookupType(String name) {
    for (TypeDecl td: getTypeDecls()) {
      if (td.getID().equals(name)) {
        return td;
      }
    }
    return null;
  }
  syn boolean TypeDecl.isAlreadyDeclared()
    = lookupType(getID()) != this;
  inh TypeDecl TypeDecl.lookupType(String name);
20
21
22
23
24
25
26
27

  syn TypeDecl TypeDecl.mostGeneralSuperType() {
    if (!hasSuper()) {
      return this;
    } else {
      return getSuper().decl().mostGeneralSuperType();
    }
  }
Niklas Fors's avatar
Niklas Fors committed
28
}
Niklas Fors's avatar
Niklas Fors committed
29

Niklas Fors's avatar
Niklas Fors committed
30
aspect ComponentAnalysis {
Johannes Mey's avatar
Johannes Mey committed
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
  syn boolean Component.isTargetOfDirectedRelation() = false;
  eq RelationComponent.isTargetOfDirectedRelation() = isTargetOfRightDirection();
  inh boolean RelationComponent.isTargetOfRightDirection();
  eq Relation.getRight().isTargetOfRightDirection()
    = getDirection() instanceof RightDirection;
  eq Program.getChild().isTargetOfRightDirection() = false;

  syn String Component.name() = getID();

  syn TypeDecl Component.toTypeDecl() = enclosingTypeDecl();
  eq RelationComponent.toTypeDecl() = getTypeUse().decl();
  inh TypeDecl Component.enclosingTypeDecl();
  eq TypeDecl.getChild().enclosingTypeDecl() = this;
  eq Program.getChild().enclosingTypeDecl() = null;

  inh RelationComponent RelationComponent.otherSide();
  eq Relation.getLeft().otherSide() = getRight();
  eq Relation.getRight().otherSide() = getLeft();
  eq Program.getChild().otherSide() = null;

  syn TypeDecl RelationComponent.ofTypeDecl() = otherSide().toTypeDecl();

  syn boolean Component.isAlreadyDeclared()
    = !isTargetOfDirectedRelation()
      && toTypeDecl() != null
      && lookupComponent(toTypeDecl(), name()) != this;
  inh Component Component.lookupComponent(TypeDecl td, String name);
  eq Program.getChild().lookupComponent(TypeDecl td, String name)
    = lookupComponentSyn(td, name);
  syn Component Program.lookupComponentSyn(TypeDecl td, String name) {
    // Check super type first to find duplicates (shadowing is not allowed)
    if (td.hasSuper() && td.getSuper().decl() != null) {
      Component c = lookupComponentSyn(td.getSuper().decl(), name);
      if (c != null) return c;
    }

    for (Component c: td.getComponents()) {
      if (c.name().equals(name)) {
        return c;
      }
    }

    for (Relation r: getRelations()) {
      Component c = r.getLeft().lookup(td, name);
      if (c != null) return c;
      c = r.getRight().lookup(td, name);
      if (c != null) return c;
    }

    return null;
  }

  syn RelationComponent RelationComponent.lookup(TypeDecl td, String name)
    = !isTargetOfDirectedRelation() && toTypeDecl() == td && name().equals(name)
    ? this
    : null;


  coll Set<RelationComponent> TypeDecl.relationComponents()
    [new HashSet<RelationComponent>()]
    root Program;
  RelationComponent contributes this
    when !isTargetOfDirectedRelation() && toTypeDecl() != null
    to TypeDecl.relationComponents()
    for toTypeDecl();

97
98
99
100
101
102
103
104
105
  syn Collection<RelationComponent> TypeDecl.relationComponentsTransitive() {
    ArrayList<RelationComponent> list = new ArrayList<>();
    if (hasSuper() && getSuper().decl() != null) {
      list.addAll(getSuper().decl().relationComponentsTransitive());
    }
    list.addAll(relationComponents());
    return list;
  }

Johannes Mey's avatar
Johannes Mey committed
106
107
108
109
110
111
112
113
114
  syn Set<OneRelationComponent> TypeDecl.oneRelationComponents() {
    Set<OneRelationComponent> set = new HashSet<>();
    for (RelationComponent rc: relationComponents()) {
      if (rc instanceof OneRelationComponent) {
        set.add((OneRelationComponent) rc);
      }
    }
    return set;
  }
115
116
117
118
119
120

  syn boolean TypeDecl.needUnresolvedClass() {
    // a TypeDecl needs an unresolved class, if it can appear in a relation
    // TODO
    return true;
  }
Niklas Fors's avatar
Niklas Fors committed
121
122
}

123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
aspect InstanceSupplier {

  inh Program TypeDecl.program();
  eq Program.getTypeDecl(int i).program() = this;

  syn Collection<TypeDecl> TypeDecl.subTypeDecls() {
    java.util.List<TypeDecl> subDecls = new ArrayList();
    for (TypeDecl decl : program().getTypeDeclList()) {
      if (decl.hasSuper() && decl.getSuper().getID().equals(getID())) {
        subDecls.add(decl);
      }
    }
    return subDecls;
  }

138
  syn TypeDecl TypeDecl.instantiableSubType() {
139
    if (getAbstract() == false) {
140
      return this;
141
142
143
    } else {
      for (TypeDecl sub : subTypeDecls()) {
        if (sub.getAbstract() == false) {
144
          return sub;
145
        } else {
146
          TypeDecl subInstance = sub.instantiableSubType();
147
          if (subInstance != null) {
148
            return subInstance;
149
150
151
152
153
154
155
156
          }
        }
      }
    }
    return null;
  }
}

157
aspect Constructors {
Johannes Mey's avatar
Johannes Mey committed
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
  syn Collection<Component> TypeDecl.componentsTransitive() {
    ArrayList<Component> list = new ArrayList<>();
    if (hasSuper() && getSuper().decl() != null) {
      list.addAll(getSuper().decl().componentsTransitive());
    }
    for (Component c: getComponents()) {
      list.add(c);
    }
    return list;
  }

  syn boolean TypeDecl.needsConstructor() {
    if (componentsTransitive().isEmpty()) {
      return false;
    }
    if (!relationComponents().isEmpty()) {
      return true;
    }
    return hasSuper()
      && getSuper().decl() != null
      && getSuper().decl().needsConstructor();
  }
180
181
}

Niklas Fors's avatar
Niklas Fors committed
182
aspect Utils {
183
184
185
186

  syn boolean RelationComponent.isMany() = false;
  eq ManyRelationComponent.isMany() = true;

Johannes Mey's avatar
Johannes Mey committed
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
  public String SimpleTypeUse.toString() {
    return getID();
  }
  public String ParameterizedTypeUse.toString() {
    StringBuilder sb = new StringBuilder();
    sb.append(getID()).append("<");
    int i = 0;
    for (TypeUse u: getTypeUses()) {
      sb.append(u.toString());
      if (++i < getNumTypeUse()) {
        sb.append(", ");
      }
    }
    sb.append(">");
    return sb.toString();
  }
  public String TypeDecl.toString() {
    return getID();
  }
Niklas Fors's avatar
Niklas Fors committed
206
}